engine optimization as well. >> i cannot remember anything -- the last i purchase anything on groupon. can you? >> i have not purchased anything on groupon. >> we will be back in just a minute. ♪ >> live from bloomberg headquarters in new york, this is "market makers." >> welcome back to "market makers." i'm scarlet fu in for stephanie today. >> we have lots to cover including jim whitaker, the c.e.o. and chairman. >> the new c.e.o. at g.m. it hasn't been formally announced. >> it has been. we broke it earlier. >> it's not a bloomberg exclusive. these are the top business stories around the world. changes at the top. chip wilson steps down as chairman of lululemon. and portevan replaces christine day. lululemon had to recall from sheer yoga pants earlier. black fish criticizes sea world for the way performing whales are treated. three music acts have been canceled -- they canceled concerts at sea world park. willie nelson, heart and bare naked ladies. they call black fish a dishonest move. in johannesburg, leaders around the world joined with south africans to mark the life of nelso